Fire-arm



' 2 Sheets-Sheefi l. I FRANZ VON UND ZU ZWERGERN.

FIRE ARM.

Patented Apr. 29, 1890.

(N0 Model.)

(N0 Model.) 2 Sheets-Sheet 2.

FRANZ VON UND ZU ZWERGERN.

v EIBE ARM. N0. 426,977. PatentedApr. 29, 1890.

AUNITED 1 STATESM PATENT OFFICE5' FRANZ VON UND ZU ZWERGERN, OF FRANKFORT-ON-TI-IE-MAIN,GERMANY, ASSIGNOR OF ONE-FOURTH T JOSEPH G. EASTLAND, OF SAN FRANCISCO,

CALIFORNIA.

FlRE-ARM.

SPEGIFIOAIION forniing paart of Letters Patent No. 426,977, da/ced. April 29, 1890.

Applickotion filed March 12, 1sss.

T0 all whom z't may concern:

Bo io known ohat I, FRANZ VON. UND ZU ZWERGERN, {L subjooo of tho Empor0r of Gormany, rosicling ao Frankforo on-oho-Main,

Gormany assignor als ono-fourth of myinoorost o0 Joseph G. Eastland, ofSan Francisco, Oalifornia, howo invonoocl now ancl usoful Improvomonts in Firo-Arms, of whioh tho following is a spocifioation.

My invontion rolatos to cortain improvomonts in magzozino ropoaoing firo-arms; and it consisos, ossontially, in, firso, oho employmont 0f a romovablo rovolving magazino locatocl in oho uppor portion of tho stook 01 butt of tho gun, in whioh magazino provision is maclo for oho zorroongornont conconorioally o0 tho axis 0f rooation of sovoral sorios of oartridgos and for automatioally fooding oaoh serios o0 tho lo2urol of oho gun loy separate spirsol springs; soeoncl, tho oomloinaoion 0f. a broeoh-olosing lovorlootwoon tho barrol of tho gun and. oho magazino wioh a origgor-lovor and a fuso o1 fiflng-pin, and, third, oho 00mloinaoion 0f a eam-faood broooh-elosing lovor with a cart1idgo-hoad to form a paoking or gas-ohook boowoon tho barrol and tho broooholosing lovor at oho momont of oxplosion of tho cartridgo.

Tho invontion is fully dosoribocl in tho folo lowing spocifioation a.ncl illustrafoocl in tho aocompanying drawings, in which Figuro 1 is a longitudinal sootional viow of a magazino firo-zorm omloodying my improvomenos. Fig. 2 is a similar viow showing oho 5 position of tho various parts als tho mornont of firing. Fig. 3 is a oransvorso voroioal soo tion takon in oho lino a b of Fig. 1. Figs. 4 to 10 aro clotail viows oi:' tho bro'och-olosing lovor and tho magazino. Figs. 11 to 14 aro 0 clooail viows of thofuso or firing-pin.

In oho uppor oclgo of tho soook 01' buht 0f tho gun is a somi-eylindrical groovo 01' roooss,

in which rosts oho romovablo mzogazino. This consisos of a cylindrical easing M, mado of 5 2ony suitablo matorial ancl proviclod with chambors h, oaoh of whioh carries a row of cartriclgos, ono bohincl anotho'r, With a spiral spring s a1; tho roar ond of oaoh ohamloor for feoding tho cartriclgos to oho barrol 0f oho Serial N0. 267,008. (N0 model.)

gun. Tho front ond of tho oasing or magazino M is proviclocl wioh a oovor consisting of a oiroular plate 01 clisk d, pivooocl ao it-s con her, so as 130 rovolvo thoroon, am]. howing aporturos oorrosponcling in numbor and dimonsions with oho ohambers h in oho oasing or magazine. A1; oho frono ancl roar onds of tho casing or magazino M, in oho oontorohoroof, aro sockoos for ongagornont 'wioh pivoos t t at tho front and 1oar onds of oho son1i-cylinclrioal groovo 01 roooss in oho buht 01 stock, so thao saicl magazino mooy rotato 011 said pivots as ios longitudinal axis. Tho roar pivoo t is providod Wifll a spring for prossing it forward, ancl also allowing io o0 yiolcl in ordor t0 facilioato oho insortion and romoval of tho magazino. Whon ohe casing 01' magazino is plaood in position in tho groovo '01 roooss, a, pin 0c on oho odgo 01": oho oovor d ongagos wioh tho odgo 0f tho groovo 01 roooss and turns oho covor so as o0 placo tho aporturos in lino wioh tho ohamloors h, so that whon in position for firing tho uppormoso chzombor Will loo in lino with oho brooch of tho lo2urol, in ordor thao tho czortmidgos may bo properly fod into tho barrel. 7 5

A oap o1 elosing piooo a is soroWod on oho roar ond of tho barrol, 2ond 2ot ioS contor is a pin p, on whioh rolsatos tho broooh-olosing 1evor b, whioh consisos 0f a disk having a clownwardly-oxtonding shank, o0 tho lowor ond 0f whioh is connootod by a hinge-joint tho trigor-lovor c. Tho broooh-olosing lovor b is providocl with a, oann r, whioh ongagos with and comprossos oho mainspring f, in orclor to oporato tho fuso 01 firing-pin z, as horoinaftor dosoriloocl.

In tho elosing-pioeo a is a sogrnentshapod opening v, (soo Fig. 3,) in Whioh works a pin y, projooting from tho triggor-lovor C. Thi s pin y projocts through tho oponingi; am]. ongagos with sockoos or rooossos w in oho odgo of oho front ond of tho mzogazino or ooosing M, (soo Figs. S, 9, and 10,) said sookoos or roeossos oorrosponcling in numbor with tho numbor 0f cartriclgo-ehamloors h in tho magzozino. Whon 1;ho broooh-closing lovor b is osoillatod. in ono diroooion, it plaoos oho oponing thoroin in lino Wioh oho brooch of oho barrol anti oho uppermost caroridge-chamber h, and a1: the same tinue, by the engagement of the pin y with one of the sockets 01 recesses w, ehe magazine M is rooated, so as oo bring oho nex oartridge-ohamber h to t-he uppermosb position and in line wioh the breeoh of the barrel.

The breech-elosing leverb is chamfered toward the side of the opening, so that it is wedge-like in its oross-seotion, and it has 011 its periphery a small hook 7a, whioh serves to eject 1:]1e head of the oartridge after firing.

The fuse or firing-pin z has at its upper end a hea-d z, working in a cylindrioal oasing d, which is screwed through the olosing-piece a and the barrel L. This head z is oonical anc1 sharp-point-ed, so that ab the moment of firing the head fits elosely in a correspond-- ingly-shaped seat in the closing-pieoe a and acts as a gas-cheok to prevent the downward escape of gas.

The fuse or firing-pin 2 has attaohed to it near its upper end a cirou1ar p1ate or disk g,

on the edge of whioh is a notoh whieh engages with the vertica1 portion of an elbowshaped arm m, which is proper1y secured to the stockinthe cavity provided for the lock meohanism, and the lower portion of the pin 2 works in a horizontal extension of the arm m. By this means the pin 2 is allowed avertical m0- tion, but is prevented from' turning. The

disk q serves as a fol1ower, and the spiral mainspring f surrounds the pin an1d works between the disk and the horizontal extension of "the arm. In the under side of the horizontal extension, fitting in dovetail ways, is a,

sliding plate n, (see Fig. 12,) in which is a s1ot e, through which the pin z passes and is 3 provided Wit-h a head. on its lower end. On 1 the f1ont side of the vertical portion of the elbow-arm m is a fl'a1z' spring 0, the free end of which bears against the sliding platze n, 3 witha tendenoy to press it baokward, and 011 I th;e pin z, beween the bearings of the meinspri ng f is a notch B, (see Figs. 13 and 14,)

for engagement With the s1ot e, as he1 einafter described.

At the time 01': the explosion of ehe cartridge the breeeh of the barre1 is c1osed by the breech-closing 1eve r b. When this 1ever' 'is oseillated. in one direwion to eject the head,

the pin y, by engaging vi iuh one of the sookets '01 recesses w, rotates the magazine M sufficiently far to bring another of the chambers h in line wioh ehe breech o1: the barrel and allow a fresh cartridge 130 be fed into the bar- 1e1by the spring s.

downward on the disk g unti1 the notch B 0f VVhen the 1ever b is moved in the opposite direction, the breech is o1osed, with oho cartridge in place in the barrel. When thetri'gger-lever c is pul1ed, the nose of the trigger A1; the same time the oam 1 0n the breechclosing 1ever b presses 1 bears against the rear end of the slidingplate n and pressos it forward, soas so disengage the notoh B from the s1ot e, and thus release thefiring-pin z and allowthe spring f to foroe it upward to strike the fulminate and e'xplode the cartridge.

A fire-arm constructed aooording 130 this i'nvention possesses many advantages over 0thers heretofore in use. The gun proper is completely independent of the magazine M,

. so that said magazine may be used as a common cartridge-box and carried or transported separately from the gun, whioh is thus lessened in weight. By this construction, also, the magazine is easily removed when exhausted and refilled or replaced by another; 01, if desired, the magazine may sometimes be dispensed with and thegun used as a single-loader byfeeding one cartridgeat a, 'time in the usual .manner. By this construotion, also, the mechanism is simplified, the cos is lessened, the arm is rendered lighter than those in ordinary use, and the loading manipulating, cleaning, anc'l keeping in repair are grealy faoilitated. Moreover, provision is made for changing guns of various o1d patterns so as 110 eonform to the improvements included in this invention.

What I olaim as new,and desire t0 secure by Letters Patent, is

l. The combination, with the buct having a semi-cylindrieal reeess in its upper edge, of a, eylindrical magazine M, the lower portion of which is received in seid reoess, a fixed pivot-pin t, and a spring-pressed m0vable piVot-pin t, upon whieh the magazine is 10- tatab1y and removably mounted, substan- 1iia1ly as described.

2. 'lhe combination, with 'the barrel L and magazine M, of the breech-olosing lever b, mounted rotatably betWeen them and arranged to be oscillated 1at arally to open communication between the magazine and. the barrel, substantially as desribed.

3. The combination, with the ba-rrel, of a. breech-closing 1ever b, having a wedge-Shaped head to form a gas-tight olosure of the barrel, substantially as described.

4. The oombination, with the barrel, of the breeoh-closin g lever b, provided With thehook k, adapted t0 engage with and eject the shell' when the lever is oscilla'ted, substantially as described.

5. The combination, with the firing.-pin z anti its aetuating-springf, of the breeoh-closing lever b, pivotally secured to the closingpin and provided with a cam r, adapted to depress the pin and oompress the spring when seid 1ever is oscillated, substantially as described.

6. The combination, with the rotatable magazine M, of the breech-closing lever b, pivotally secured to the closing-piece and provided with a, hinged triggerzhaving a, pin y, adapb ed 110 aotuate the magazine when the 1ever is os'cillated, subst&nt-ially es describe&

IIO

7. The eombination,with the br9eeh-elosing lever b, pivooally secured so the elosingpiece, and its hinged trigger c, having a nose j, of the spring-actuated firing-pin z an. the

5 sliding plate n, engaging with the pin and adapted to be moved by the nose of the trigger, substantially as described.

In testimony whereof I have signd my name 130 this speeification in the presene6 two subscribing witnesses.

FRANZ VON UND ZU ZWERGERN. Witnesses:

FRANZ HASSLAOHER, JOSEPH PATRICK. 

